金属冷挤压是少无切削的先进工艺方法之一。由于冷挤压是在三向压应力状态下变形,材料经变形后得到强化,同时因为它不象切削加工那样把金属流线切断,而是获得了连续的金属流线,所以冷挤压制得零件的机械性能远超过切削加工的零件。这就有可能在保证使用 Cold metal extrusion is less cutting-free one of the advanced technology. Since the cold extrusion is deformed under a three-direction compressive stress, the material is strengthened after being deformed, and since it does not cut off the metal flow line like the cutting, but obtains a continuous metal flow line, the cold extrusion Parts of the mechanical performance far exceeds the cutting parts. This is possible to use